#include<stdio.h>
int main()
{
	printf("%d\n", sizeof("abcdef"));
	printf("%d\n", strlen("\\141\141abc\t"));
	printf("%d\n", strlen("abc\0def"));
	printf("abcdef");
	printf("\n");
	printf("a\bcdef");

	printf("123456");


	printf("\n");


	printf("123\t456");
	printf("abc\ndef");
	printf("abcd\fefg");
	printf("abcd\r123");
	printf("\"hello\"");

	printf("\064");
	return 0;